Finding the Fourth Proportional to 17,050.81, 23,530.11 and 9,978.58

Step by Step Solution

1. Step 1: Write the proportion equation
   17,050.81 : 23,530.11 = 9,978.58 : x
2. Step 2: Convert to fraction form
   17,050.81/23,530.11 = 9,978.58/x
3. Step 3: Cross multiply
   17,050.81x = 23,530.11 × 9,978.58
4. Step 4: Simplify right side
   17,050.81x = 234,797,085.04
5. Step 5: Solve for x
   x = 234,797,085.04/17,050.81
6. Step 6: Final answer
   x = 13,770.44